Vinod Kumar Saini's Article in Hardware

826 Barcode Scanners- the perfect device to coupled with computers
A barcode scanner consists of a code reader and decoder. The reader is used for throwing light on a barcode measuring the amount of light that is reflected back by the barcode. This light energy is rehabilitated into electrical energy by a scanner. The electrical energy in turn is changed into data in the computer.
Posted on Sep-21-2009